| 王菱,倪建华. 2001. 以黄淮海为例研究农田实际蒸散量[J]. 气象学报, 59(6):784-794, doi:10.11676/qxxb2001.082 |
| 以黄淮海为例研究农田实际蒸散量 |
| RESEARCH OF ACTUAL EVAPOTRANSPIRATION IN FARMLAND: A CASE STUDY IN HUANG-HUAI-HAI RIVER REGION |
| 投稿时间：1999-07-25 修订日期：2000-07-22 |
| DOI：10.11676/qxxb2001.082 |
| 中文关键词: 农田实际蒸散 计算方法 区域分布 |
| 英文关键词:Actual evapotranspiration in far mland,Estimating method,The regional distribution of actual evapot ranspiration |
| 基金项目:国家自然科学基金资助项目(49871041);中国科学院禹城实验站开放课题(49890330) |
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| 中文摘要: |
| 以田间实验资料为基础,建立农田蒸散量和土壤相对含水量与潜在蒸散的函数关系。利用这种函数关系,计算黄淮海地区,在自然条件下农田蒸散量的变化。结果表明,黄淮海农田蒸散量的年变化呈双峰型,第一峰值出现在冬小麦抽穗开花期,第二高峰出现在夏玉米抽雄开花期。农田蒸散的区域分布趋势与自然降水分布相一致,在量值上约等于降水量的84%。 |
| 英文摘要: |
| On the basis of the experiment al data in farm land,a function relationship between the potential evapot ranspiration and the relative water content of the soil in the root zone wasest ablished.By using the function relationship,the actual evapot ranspiration was cal culated in natural rainfal condition in Huang-Huai-Hairegion.Theannual change of the actual evapot ranspiration was in dual-peak type,the first peakvalue occurred in the booting-flower stage of wheat,the second one took place during booting-flower stage of summer corn.The trend of regional distribution of evapotranspiration conformed to that of natural precipitation,its value was over 84% of the rainfall. |
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